Equus 3120 - OBD 2&1 Tool Kit - Manual (Page 51)

OBD2 & 1 49
E
Ford OBD1 Systems
CODE RETRIEVAL PROCEDURES - KOEO TEST
5. Turn ignition key OFF and wait for the on screen prompt. If you wish
to exit the KOEO test at this time, press the ENTER/FF button.
6. If your vehicle is equipped with one of the following engine types,
perform the added procedures described below:
■ For 4.9L engines with standard transmission: Press and hold
the clutch until all codes are sent (steps 7 through 9).
■ For 7.3L diesel engines: Press and hold accelerator until all
codes are sent (steps 7 through 9).
■ For 2.3L turbo engines with octane switch: Put switch in pre-
mium position.
7. Turn ignition ON. DO NOT start the engine. Press the ENTER/FF
button to continue.
8. While codes are being retrieved, a "One
moment please KOEO test is in
progress..." message shows on the
Tool's LCD display.
As soon as the ignition is turned
"on", the vehicle's computer
enters the Self-Test mode.
Clicking sounds will be heard coming from the engine. This is
normal. It indicates that the vehicle's computer is activating
relays, solenoids, and other components to check their oper-
ation.
WARNING: On some vehicles equipped with an Electric
Cooling Fan, the computer activates the cooling fan to
check its operation. To avoid injury, keep hands or any
part of your body a safe distance from the engine during
this test.
■ If the Tool fails to link to the vehicle's
computer, a "Vehicle is not respond-
ing" message shows on the Tool's
LCD display. Do the following:
- Verify the ignition is ON.
- Check the cable connections at
the Tool and at the vehicle's DLC.
- Turn the ignition OFF, wait 10 seconds, then turn back ON to
reset the computer.
BE SURE to perform the added procedures in step 6,
if appropriate for your vehicle, BEFORE turning the
ignition ON.
- Press ENTER/FF button to continue.